wwide

hey guys....new here anyway I have a 93 SC400. The car runs smooth rides great but.............NO POWER and Slow rev???? tried tune up ect.... fuel pressure. I even put it on a snap on solus machine all sensors within range. Anyway I traded for the car in this condition and love the car but........cannot figure it out please help.

thanks in advance

LexusFiend

Do you have any check engine or OD off lights on your cluster? How many miles are on the car?

wwide

no check engine. 110k on the car had 90k mile major lexus check up.

2JZ_SC

how long have you had this car???

wwide

traded for the car 3 weeks ago.

2JZ_SC

How's the oil look?

okiaristo

sounds like the air filter or distibutor is screwed and off by a few degrees

O. L. T.

iTrader: (17)

the TPS will do that without throwing a code, but if it shorts it will throw a 41 code.

The MAF sounds more likely dirty. It also does not HAVE to throw a code.

wwide

oil is good to go no problems there.

wwide

maf checked out to be good no problems there....

wwide

no adjustment for the dist. new filter

vince1128

maybe your last car was a ferrari? maybe theres a bunch of gunk in the enigine. try seafoam

sc400a1

try to start the car run it turn it off and start it again within 15 secons of off time some codes are a 2 trip i would check your a/f could be o2 sensors acting up you also might have unmetered air entering the engine look for air leaks

wwide

finally someone who has a clue ha ha ha. Anyway It FINALLY threw a code 25 main o2 open loop the engine is trying to richen up becaue the computer is sesnsing a lean condition. But it is actually running rich but that is the issue. Thanks